How does the ShadowTLS protocol work and why is it needed during heavy censorship?

IT MASKS PROHIBITED TRAFFIC TO LOOK LIKE A HANDSHAKE WITH A REAL, TRUSTED WEBSITE.

The protocol bypasses DPI filtering attempts by presenting a legitimate TLS certificate from a popular unblocked resource. This allows you to break through deep network filters without renting your own domain names.

The Dual Handshake Principle

Unlike traditional proxies, ShadowTLS does not generate self-signed certificates, which are easily detected by modern filtering systems. During the initial contact, the client connects to a third-party white-listed site (such as a major CDN or bank), verifies the legitimacy of the TLS session in front of the censor, and then switches the payload to the secure proxy server.

Practical Setup Recommendations

Use domains that support TLS 1.3 and the ALPN H2 protocol as your cover node.
Pair ShadowTLS with Shadowsocks or Trojan protocols for maximum cryptographic resilience.
Ensure the chosen cover site is physically close to your VPS location.